Engraving and ornamenting machine



(No Model.) 4 SheetsShet 1.

W. s. EATON. ENGBAVING AND ORNAMENTING MACHINE. No. 584,335. PatentedJune '15, 1897;

WITNESSES: 1 NTOR:

(No Model.) 4 Sheets Sheet 2.

W. S. EATON. ENGRAVING AND ORNAMENTING MACHINE.

No. 584,335. I Patented June 15,1897.

WITNESSES: I NTOR: 5 xfi w. &z.

Lmm, WASNWGTON n c (No Model.) 4 SheetsSheet 3.

r W. S. EATON. ENGRAVING AND ORNAMEN'IING MACHINE. No. 584,335.

Patented June 15,1897.

WITNESSES: glgssbggm Q I 1225 Atzorneys @5561.

(No Model.) 4 SheetsSheet 4. W. S. EATON. ENGRAVING AND ORNAMENTINGMACHINE. No. 584,335.

Patented June 15,1897.

NTOR:

WITNESSES lJNTTEn STATES PATENT @EETQE.

\VILLIAM S. EATON, OF SAG HARBOR, NElV YORK.

ENGRAVlNG AND ORNAMENTING MACHINE.

SPECIFICATION forming part of Letters Patent No. 584,335, dated June 15,1897. Application filed February 14,1896. Serial No. 579,233. (Nomodel.)

To [LZZ whom, it may concern.-

Be it known that 1, WILLIAM S. EATON, a citizen of the United States,residing at Sag Harbor, in the county of Suffolk and State of NewYork,have invented certain new and use ful Improvements in Engraving andOrnamenting Machines, of which the following is a specification.

The improvements in engraving and ornamenting machines forming thesubject of this invention involve generally the application of theprinciple of the pantograph; and it 0011- sists, specifically, in novelconstructions and arrangements of parts whereby such principle isutilized to its fullest extent in the production of a machine adapted toperform singly and in multiple or gang work all kinds of engraving,damaskeening, and ornamental work, the work while inv process of production, as well as the larger sample or copy of which miniaturereproductions are made, being conveniently located and within easy viewof the operator.

My improved engraving and ornamenting machine comprises a suspendedrectangular frame the members of which are connected together byuniversal joints, as gimbal-joints, in such manner as to be free toswing in all directions, a guiding and controlling arm carrying at itsouter end a tracer, adapted to be moved in all directions over thesample or copy to be imitated held on a table beneath it, the arm at itsinner end being connected to the lower horizontal bar of the swingingframe by aconnection consisting, preferably, of rods universally jointedat their central parts 'to said horizontal bar and similarly jointed tothe end of the guiding-arm, and with their lower ends controlled so asto be free to rock in all directions andto travel in vertical planesonly. Such connections provide for perfect control over the swingingframe and reduce the movements of its lower horizontal bar to aboutone-half of that of the tracer. A tool-carrying bar is connected bymeans of universal joints to the side members' of the swinging frame insuch manner as to move in unison with the lower horizontal bar, but in areduced degree, in proportion to their relative distances from the upperpoints of suspension of the side members, said side members bcin gpreferably made in two parts to provide for adjustment as to theirlengths, and the tool-carrying bar is connected to the lower partsthereof. The tool-holders arrangedvertically are each connected to thetool-carrying bar by means of parallel horizontal links arranged invertical planes, and to retain said tool-holders in position when therectangular frame is swung in different inclined positions thetool-carrying bar is prevented from rocking on its longitudinal axis bymeans of a link universally pivoted to an arm projecting from it and toa stationary point of the main frame and arranged parallel to the planeof the swinging rectangular frame. The work or pieces of work to beoperated upon are held on a station ary bed or series of chucks securedto the bed located beneath the tools and a short distance above the maintable, the work and copy or sample being thus readily seen by theoperator at all times without necessitating change of his position. Thetools are normally held away from the work-by means of a spring-actuatedframe located beneath and bearin g against the lowerones of the parallellinks of the tool-holders, and the tools are allowed to fall and bear onthe work by the depression of this frame through the medium of a treadleconnected to it. These features of construction with other minorstructural improvements will now be fully described by reference to theaccompanying drawings in which- Figure 1 is a rear elevation of myimproved engraving and ornamenting machine. Fig. 2 is a verticalsectional elevation taken on the line 2 2 of Fig. 1. Fig. 3 is a partplan of the machine, taken on the irregular line 3 3, Fig. 1. Fig. 4illustrates, on an enlarged scale, one of the tool-holdin g devicesprovided with means for rotating the tool and its attached controllingparts of the machine. Fig. 5 is a plan of a few of such rotatingtool-holding devices, and Fig. 6 is a vertical section of one of thetool-heads.

The stationary parts of the machine consist of the table A, supported bythe legs A A, the bar B, rigidly connected to the standards B B, the bed0, carrying the work-holding chucks O O and supported by the standards OO and located a short distance above the main table A. The side membersof the swinging frame are, as shown, composed of two parts, the upperparts E E being offset frames which are provided with downwardly-.projecting supporting-points E E at their upper oifset ends, arrangedto seat in hardened plugs set in recesses formed in the top of thestationary bar B (shown by dotted lines in Fig. 4) in such manner as toallow the side members to swing in all directions, and the lower offsetends being bored to receive the lower parts F F of the side members andprovided with clamping devices, as screws E E, by means of which the twoparts E and F may be rigidly connected when adj usted as desired. Thelower ends of the parts F F are connected to the lower horizontal bar G,by means of the pivotal-fork connections G G, in such manner that thelower ends of the side members are caused to move with the bar G and aremaintained in parallelism in all positions they are caused to assume.

The guiding and controlling arm H, located over the table A, is providedwith the tracer H at its free end, adapted to be freely moved over thecopy I to be imitated, which is clamped by any suitable means, as dogs II, to the table A. The inner end H of this arm H is connected to theupper ends of the two rods J by means of the universal joints J J, andthese rods are provided with yokes J J 2 at their central parts, whichembrace the horizontal bar or member G of the swinging frame and areconnected thereto through the medium of collars G G fitted on the bar Gto rotate only, and pivoted to the yokes J J by means of pivotal screws,so that, while the rods J J are free to assume various positionsrelative to the bar G, said bar G is caused to move with the yokes J Jof the rods J J. The lower ends of the rods are connected to the link orpiece K by means of the universal joints K K, and the other end of thislink K is fitted to rock on the stationary shaft K so that the rods J Jcan be moved in all direc tions from points at their lower ends and canalso be raised and lowered with the lower part of the swinging framewhen the side members thereof are being adjusted.

The upper ends of the parts F F of the side members of the swingingframe carry the toolcarrying bar L by means of the gimbal-joints L L,the longitudinal axis of this bar being located in the plane of theswinging frame and parallel to the upper and lower horizontal jointsthereof. The distance of the axis of said bar from the uppersupporting-bearings determines the movements of the bar and the toolscarried thereby relatively to the -movements of the lower bar G. Fromtwo the tools down to the work, adjustable weights M are placed on thetop horizontal link M.

N ow to hold the tools substantially vertically the plane, including thetwo pivotal points L L and the longitudinal axis of the bar L, ismaintained in substantially vertical posit-ions during the swinging ofthe rectangular frame by the link N, connected at its upper end to thearm N, secured to the bar B, and at its lower end to the arm Nprojecting from the bar L, by means of the universal joints N and Nrespectively.

The work to be operated upon is held in the chucks O, which may be ofany suitable construction and which are adj ustably clamped to the bed 0in any suitable manner-as, for instance, by means of bolts and nutsOsaid bolts passing through enlarged holes in the bed, as clearly shownin Figs. 2 and t. It is evident that work may be held at the outer endsof the links M M and the tools held stationary on the bed 0.

The tools are normally held away from the work in the chucks O O bymeans of the bar P, which has bent ends P P, pivoted to the upper endsof the standards 0" C, said bar P being held in upper position to act onthe lower links M M and so raise the tools'by means of the springs P? Psurrounding the lower parts of the rods P P extending from the ends P Pof the bar P down through holes in the table A. Fro m the bar P alsodepend the rods Q Q, which pass through holes in the table and areprovided with length-adjusting means, as turnbuckles Q Q. The lower endsof these rods Q Q connect with levers Q Q pivoted to the under side ofthe table, and the outer ends of these levers are connected by the rodsR R to the treadle R, which is fitted to rock on the shaft K the bearingof the treadle on this shaft being between the two bearings of the linkK, as shown at Fig. 3.

Now when the machine is in operation and the tools are required to acton the work the treadle is depressed by the foot of the operator, whichaction allows the tools to descend, and upon releasing said treadle thetools are removed and held away from the work.

When routing or cutting operations or damaskeenin g ornamentation are tobe performed by the machine, then I propose to construct the tool-headas shown in Figs. 4, 5, and 6, providing them with spindles S S, adaptedto carry the tools at their lower ends, and having small pulleys S Ssecured to their upper ends, and locate guide-pulleys S S on studscarried by the bar L immediately over the joints L L of the links M M.The cord or belt T shown passing around the pulleys S S is for thepurpose of imparting rotary motion to the spindles SS and may be drivenfrom anysuitable source, such driving connections being so common andwell understood I have thought it unnecessary to illustrate them here.

It will be observed that by reason of this mechanical adaptation of thepantograph principle the proportional movements of the tracing deviceand the Working tools may be varied in any degree desired, theproportions shown in the drawings being about eight to one, and thatwithin certain limits the proportional movements of any given machinemay be varied by adjustment of the side in embers E F of the swingingframe, and that both the work being done by the machine and the sampleor copy are in easy View of the operator.

I claim as my invention- 1. In an engraving and ornamenting ma chine,the combination of a suspended rectangular frame having jointconnections at its corners whereby it is free to move in all directions,a guiding and controlling arm connected at one of its ends to the lowerhorizontal member or bar of the rectangular frame and having a tracer atits free end, a tool-carrying bar connected at its ends to the sidemembers or rods of the rectangular frame by means of universal joints,means for holding the tool-carrying bar substantially vertical or fromrotating on its axis in the plane of the frame, a tool-holding device ortoolholding devices vertically arranged in front of the tool-carryin gbar, and horizontal parallel links pivoted to the upper and lower endsof the tool-holding devices and to the tool-carrying bar.

2. In an engraving and ornamenting ma chine, the combination of asuspended rectangular frame having joint connections at its corners,whereby it is free to move in all directions, a guiding and controllingarm connected at one of its ends to the lower horizontal member or barof the rectangular frame and havin a tracer at its free end, atool-carrying bar connected at its ends to the side members or rods ofthe rectangular frame by means of universal joints, a link suspendedfrom a fixed point of the main frame, connected at its lower end to aprojecting piece on the tool'carryin g bar and arranged parallel to theplane of the suspended rectangular frame, a tool-holding device ortoolholding devices vertically arranged in front of the toolearryingbar,and horizontal parallel links pivoted to the upper and lower ends of thetool-holding devices and to the tool-carrying bar.

3. In an engraving and ornamenting machine, the combination of asuspended rectangular frame having its side members and lower horizontalmember jointed so as to be free to swing in all directions, rodsconnected at their central parts to the horizontal member by means ofuniversal joints, a frame or link horizontally arranged, universally jointed to the lower ends of these rods and at its other end to a fixedfulcrum, a guiding and controlling arm universally jointed at one of itsends to the upper ends of these rods and carrying a tracer at its outerfree end, a table beneath the tracer for holding the sample or copy tobe imitated, a tool-carrying bar connected at its end by universaljoints to the i. In an engraving and ornamenting machine, thecombination of a suspended rectangular frame having its side members andlower horizontal member jointed so as to be free to swing in alldirections, rods connected at their central parts to the horizontalmember by means of universal joints, a frame or link horizontallyarranged, universally jointed to the lower ends of these rods and at itsother end to a fixed fulcrum, a guiding and controlling arm universallyjointedat one of its ends to the upper ends of these rods, and carryinga tracer at its outer free end, a table beneath the tracer for holdingthe sample or copy to be imitated, a tool-carrying bar connected at itsends by universal joints to the side members of the frame between theupper swinging bearings of the frame and the tracerarm, an arm orprojection extending from the rear of the tool-carrying bar, and alin'k'uni- 'versally connected to this arm and to a fixed projection ofthe main frame and arranged parallel to the plane of the rectangularframe.

5. In an engraving and ornamenting machine, the combination of asuspended rectangular frame having its side members and lower horizontalmember jointed so as to be free to swing in all directions, rodsconnected at their central parts to the horizontal memher by means ofuniversal joints, a frame or link horizontally arranged, universallyjointed to the lower ends of these rods and at its other end to a fixedfulcrum, a guiding and controlling arm universallyjointed at one of itsends to the upper ends of these rods and carrying a tracer at its outerfree end, a table beneath the tracer for holding the sample or copy tobe imitated, a tool-carrying bar connected at its ends by universaljoints to the side members of the frame between the upper swingingbearings of the frame and the tracerarm, an arm or projection extendingfrom the rear of the tool-carrying bar, and a link universallyconnectedto this arm' and a fixed projection of the main frame and arrangedparallel to the plane of the rectangular frame, a tool-holding device ortool-holding devices vertically arranged in front of the toolcarryin gbar, and horizontal parallel links pivoted to the upper and lower endsof the tool-hold ing devices and to the tool-carrying bar.

6. In an engraving and ornamenting machine, the combination of asuspended rectangular frame, comprising two hanging side members eachcomposed of an upper offset frame and a lower rod or part adj ustablysecured thereto, and a lower horizontal member jointed to the lower endsof the lower rods or parts of the side members, a guiding andcontrolling arm connected at one of its ends to the lower horizontalmember or bar of the rectangular frame and having a tracer at its freeend, a tool-carrying bar connected at its ends to the upper ends of thelower parts of the side members of the rectangular frame by means ofuniversal joints, means for holding the tool-carrying bar substantiallyvertically or from rotating on its axis in the plane of the frame, atool or tools connected to the toolcarrying bar, and a bed or tablelocated beneath the tool or tools upon which the work is held.

7. In an engraving and ornamenting machine, the combination of asuspended rectangular frame, comprising two hanging side members eachcomposed of an upper offset frame and a lower rod or part adjustablysecured thereto, and a lower horizontal member jointed to the lower endsof the lower rods or parts of the side members, a guiding andcontrolling arm connected at one of its ends to the lower horizontalmember of the frame and having a tracer at its free end, a table beneaththe tracer for holding the sample or copy to be imitated, atool-carrying bar connected at its ends by universal joints to the upperends of the lower rods or parts of the side members of the frame betweenthe upper swinging bearings of the frame and the tracer-arm, an arm orprojection extending from the rear of the tool-bar, and a linkuniversally connected to this arm and to a fixed projection of the mainframe and arranged parallel to the plane of the rectangular frame.

8. In an engraving and ornamenting machine, the combination of asuspended rectangular frame having joint connections at its cornerswhereby it is free to move in all directions, a guiding and controllingarm, connected at one of its ends to the lower horizontal member or barof the rectangular frame and having a tracer at its free end, atool-carrying bar connected at its ends to the side members or rods ofthe rectangular frame by means of universal joints, means for holdingthe tool-carrying bar substantially vertically or from rotating on itsaxis in the plane of the frame, a tool-holding device or tool-holdingdevices vertically arranged in front of the tool-carrying bar, andhorizontal parallel links pivoted to the upper and lower ends of thetool-holding devices and to the tool-carrying bar, a spring-actuatedframe tools away from the work, and a treadle connected to this framefor depressing it and releasing the tool-holders.

9. In an engraving and ornamenting machine, the combination of asuspended rectangular frame having joint connections at its cornerswhereby it is free to move in all directions, a guiding and controllingarm, connected at one of its ends to the lower horizontal member or barof the rectangular frame and having a tracer at its free end, atool-carrying bar connected at its ends to the side members or rods ofthe rectangular frame by means of universal joints, means for holdingthe tool-carrying bar substantially vertically or from rotating on itsaxis in the plane of the frame, a tool-holding device or tool-holdingdevices vertically arranged in front of the tool-carrying bar, andhorizontal parallel links pivoted to the upper and lower ends of thetool-holding devices and to the tool-carrying bar, a spring-actuatedframe extending under the lower parallel links of the tool-holders andnormally holding the tools away from the work, and a treadle andadjustable connections between the treadle and the spring-actuatedframe.

10. In an engraving and ornamenting machine, the combination of asuspended rectangular frame having joint connections at its cornerswhereby it is free to move in all directions, a guiding and controllingarm connected at one of its ends to the lower horizontal member or barof the rectangular frame and having a tracer at its free end, atool-carrying bar connected at its ends to the side members or rods ofthe rectangular frame by means of universal joints, means for holdingthe tool-carrying bar substantially vertically or from rotating on itsaxis in the plane of the frame, a tool-holding device or tool-holdingdevices vertically arranged in front of the tool-carryin g bar, andhorizontal parallel links pivoted to the upper and lower ends of thetool-holding devices and to the tool-carryin g bar, verticaltool-carryin g spindles in the tool-holding devices, pulleys on theupper ends of these spindles, guidepulleys fitted on studs on thetool-carrying bar, and a drive-belt around the pulley.

In testimony whereof I have hereunto subscribed my name.

WILLIAM S. EATON.

Witnesses:

FRANCIS H. WALSH, FRANK B. GLOVER.

